3 years ago

What is a cation? Please help me answer this question

Physics

2 answers:

a_sh-v [17]3 years ago

5 0

Answer:

A positively charged ion

salantis [7]3 years ago

3 0

Answer:

Ion

Explanation:

An ion with a positive charge that is attracted to the cathode in electrolysis

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The density of this material is 2 g/cm3 there are 24 cm3 find the total mass

Fynjy0 [20]

Answer:

<h2>The answer is 48 g</h2>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question we have

mass = 2 × 24

We have the final answer as

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3 years ago

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Yakvenalex [24]

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bixtya [17]

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4 years ago

An engine has an energy input of 125 J, and 35 J of that energy is transformed into useful energy. What is the efficiency of the

xeze [42]

The efficiency of the engine at the given useful energy and input energy is 28%.

The given parameters:

<em>Input energy of the engine, = 125 J</em>
<em>Useful energy of the engine, 35 J</em>

The efficiency of the engine is defined as the ratio of the output energy (useful energy) to the input energy and it is calculated as follows;

$efficiency\ = \frac{0ut put \ energy}{1nput \ energy} \times \ 100\%\\\\efficiency\ = \frac{35}{125} \times 100\%\\\\efficiency\ = 28 \ \%$

Thus, the efficiency of the engine at the given useful energy and input energy is 28%.

Learn more about efficiency of engine here: brainly.com/question/6751595

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